Download Evaluates: MAX4104/MAX4105/MAX4304/MAX4305 MAX4104 Evaluation Kit ________________General Description ____________________________Features

19-4757; Rev 3; 10/98
MAX4104 Evaluation Kit
____________________________Features
The MAX4104 evaluation kit (EV kit) simplifies evaluation
of the MAX4104 ultra-high-speed, low-noise, 880MHz
amplifier. The EV kit circuit demonstrates the MAX4104
in the noninverting unity-gain configuration. RF-style
connectors (SMA) and 50Ω terminating resistors are
included for test equipment compatibility.
♦ 880MHz (typical) -3dB Bandwidth
The MAX4104 EV kit can also be used to evaluate the
MAX4105, MAX4304, and MAX4305. Simply order a
free sample of the appropriate part (MAX4105ESA,
MAX4304ESA, or MAX4305ESA), replace the IC on the
EV board, and change the gain-setting resistors for the
desired gain. Refer to the MAX4104/MAX4105/
MAX4304/MAX4305 data sheet for suggested resistor
values.
♦ 100MHz 0.1dB Gain Flatness
♦ 2.1nV/√Hz Voltage Noise Density
♦ 400V/µs Slew Rate
♦ ±70mA Output Current Drive
♦ -88dBc SFDR (at 50MHz)
♦ Fully Assembled and Tested Surface-Mount
Board
_________________________Quick Start
Ordering Information
PART
TEMP. RANGE
IC PACKAGE
MAX4104EVKIT
-40°C to +85°C
8 SO
Component List
DESIGNATION QTY
DESCRIPTION
C1, C3
2
10µF, 10V, 20% tantalum capacitors
AVX TAJB106M010 or
Sprague 293D106X0010B
C2, C4
2
0.1µF 10% ceramic capacitors
IN, OUT
2
SMA connectors
R1, R2
2
49.9Ω, 1% resistors
RF
1
22Ω, 5% resistor
RG
0
Open
U1
1
MAX4104ESA
None
1
MAX4104 PC board
None
1
MAX4104/MAX4105/MAX4304/
MAX4305 data sheet
Component Suppliers
SUPPLIER
PHONE
FAX
AVX
803-946-0690
803-626-3123
Sprague
603-224-1961
603-224-1430
Note: Please indicate that you are using the MAX4104 when
contacting these component suppliers.
The MAX4104 EV kit is fully assembled and tested.
Follow these steps to verify board operation. Do not
turn on the power supply until all connections are
completed.
1) The circuit requires supply voltages of ±3.5V to
±5.5V. For evaluation purposes, connect a +5V supply to the pad labeled VCC and a -5V supply to the
pad labeled VEE. Connect the power-supply
grounds to the pad marked GND.
2) Connect the output marked OUT to an oscilloscope
through a terminated 50Ω cable.
3) Turn on the power supply. Apply a signal of ±3.4V
maximum to the SMA connector marked IN.
4) Verify the output signal on the oscilloscope.
Note: when using a 50Ω terminated oscilloscope
input, the output amplitude observed on the oscilloscope will be half that on the input, due to the voltage divider formed by the 49.9Ω back-terminating
resistor (R2) and the oscilloscope input termination
impedance.
_____________Layout Considerations
The MAX4104 EV kit layout has been optimized for
high-speed signals and low distortion, with careful
attention given to grounding, power-supply bypassing,
and signal-path layout. The small, surface-mount,
ceramic bypass capacitors C2 and C4 have been
placed as close to the MAX4104 supply pins as possible. A continuous ground plane has been maintained
under the IC, RF, and RG to reduce inductance to the
signal return path. Capacitance at the inverting input
pin has been minimized by reducing the feedbacktrace length and using 0805-size surface-mount feedback and gain-set resistors.
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-865-8769.
www.BDTIC.com/maxim
Evaluates: MAX4104/MAX4105/MAX4304/MAX4305
________________General Description
Evaluates: MAX4104/MAX4105/MAX4304/MAX4305
MAX4104 Evaluation Kit
1
2
N.C.
IN-
N.C.
MAX4104
VCC
8
7
RG
OPEN
VCC
C2
0.1µF
OUT
3
IN
C1
10µF
10V
6
IN+
OUT
R2
49.9Ω
R1
49.9Ω
4
VEE
C3
10µF
10V
VEE
N.C.
5
C4
0.1µF
RF
22Ω
Figure 1. MAX4104 EV Kit Schematic
2
_______________________________________________________________________________________
www.BDTIC.com/maxim
MAX4104 Evaluation Kit
Evaluates: MAX4104/MAX4105/MAX4304/MAX4305
1.0"
Figure 2. MAX4104 EV Kit Component Placement Guide—
Component Side
1.0"
1.0"
Figure 3. MAX4104 EV Kit PC Board Layout—Component Side
Figure 4. MAX4104 EV Kit PC Board Layout—Solder Side
_______________________________________________________________________________________
www.BDTIC.com/maxim
3
Evaluates: MAX4104/MAX4105/MAX4304/MAX4305
MAX4104 Evaluation Kit
NOTES
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
4 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 1998 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
www.BDTIC.com/maxim